package com.sky.controller.user;


import com.sky.constant.StatusConstant;
import com.sky.entity.Category;
import com.sky.entity.Dish;
import com.sky.result.Result;
import com.sky.service.DishService;
import com.sky.vo.DishVO;
import lombok.extern.slf4j.Slf4j;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.data.redis.core.RedisTemplate;
import org.springframework.http.ResponseEntity;
import org.springframework.web.bind.annotation.GetMapping;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.RestController;
import org.springframework.web.client.RestTemplate;

import java.util.List;

@RestController("userDishController")
@RequestMapping("/user/dish")
@Slf4j
public class DishController {
    @Autowired
    private DishService dishService;
    @Autowired
    private RedisTemplate redisTemplate;

    @GetMapping("/list")
    public Result<List<DishVO>> dish(Long categoryId) {
//        构造redis中的key
        String key = "dish_" + categoryId;
//        查询redis中是否有菜品数据
        List<DishVO> list = (List<DishVO>) redisTemplate.opsForValue().get(key);
//        如果存在直接返回
        if (list != null && list.size() > 0) {
            return Result.success(list);
        }


        Dish dish = new Dish();
        dish.setCategoryId(categoryId);
        dish.setStatus(StatusConstant.ENABLE);//查询起售中的菜品

        //如果不存在，查询数据库，将查询到的数据放入redis中
       list = dishService.listWithFlavor(dish);
       redisTemplate.opsForValue().set(key, list);
        return Result.success(list);

    }
}
